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Physics, 20.06.2021 16:30 dessy6546

Necesito ayuda urgente ya que es para una prueba de ahora y tengo que terminar unas preguntas que ni entiendo, es esto 2-¿Qué energía cinetica tendrá un cuerpo de 45kg de masa cuando lleva una velocidad de 76km/h? 3-Un adulto de 80kg camina a una rapidez de 4m/s. a)¿Cuál es su energía cinetica? b)¿Cuál seria su rapidez si su energía cinetica se duplicara?

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